Website domain name, referred to as domain name or network domain, is the name of a computer or computer group on the Internet consisting of a string of characters separated by dots. It is used to identify the electronic location of the computer during data transmission; domain name It can be said to be a nickname for an IP address, the purpose is to make it easier to remember the latter.
What is a website domain name?
Website domain nameReferred to as domain name or network domain, it is the name of a computer or computer group on the Internet consisting of a string of characters separated by dots. It is used for data processing. Identifies the computer's electronic location during transmission. A domain name can be said to be a proxy for an IP address, in order to make it easier to remember the latter.
For example, php.cn is a domain name corresponding to the IP address 208.80.152.2.
People can directly visit php.cn to replace the IP address, and then the Domain Name System (DNS) will convert it into an IP address that is easy for machines to identify. In this way, people only need to remember php.cn, a string of characters with special meanings, instead of numbers without meanings.
The core of a domain name is the Domain Name System (English: Domain Name System, abbreviation: DNS). Any name in the domain name system is a domain name. In the hierarchical structure of the domain name system, various domain names are subordinate to the root domain of the domain name system.
The first level of a domain name is the top-level domain, which includes general top-level domains, such as .com, .net, and .org; and national and regional top-level domains, such as .us, .cn, and .tk.
The level below the top-level domain name is the second-level domain name, one level at a time. These domain names provide registration services to people who can use them to create public Internet resources or run websites. The management services of top-level domain names are handled by the corresponding domain name registration authority (domain name registry), and the registration services are usually handled by domain name registrars.
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